【摘要】 目的应用彩色多普勒超声探讨锁骨下动脉窃血对椎动脉和桡动脉血流的影响。方法 32例经X线数字减影证实的锁骨下动脉窃血综合征患者行彩色多普勒超声检查,分析椎动脉和桡动脉的血流方向、血流速度、频谱形态的变化。结果 32例患者中,锁骨下动脉狭窄25例,闭塞7例。椎动脉反流程度与锁骨下动脉狭窄程度呈正相关;重度锁骨下动脉狭窄与桡动脉血流动力学改变相关性较好。结论分析椎动脉、桡动脉血流变化特点可为锁骨下动脉窃血提供有价值的诊断信息。更多还原

【Abstract】 Objective To explore the effect of subclavian artery steal on vertebral artery and radial artery blood flow by color Doppler ultrasonography. Methods The change of direction, velocity and spectrum of vertebral and radial artery blood flow were analyzed in 32 patents with subclavian steal syndrome(SSS)confirmed by X-ray digital subtraction. Results 25 patients were with subclavian artery stenosis and 7 patients were with occlusion among 32 SSS patients. The level of regurgitation of vertebral artery was positively related to the degree of stenosis of subclavian artery. Severe stenosis of subclaian artery had better correlation with hemodynamic changes of radial artery.Conclusions Analysis of flow changes of vertebral and radial artery may provide valuable information for diagnosis of SSS.更多还原